Question

现在，当我使用2 * .pi的CGFloat时，它没有动画。它会为.pi设置动画，但仅旋转一半。如何为多个旋转设置动画？我尝试将.pi乘以不同的数字以进行更多旋转，但是如果角度为360，则该对象不会移动。如何使这种情况发生？

    UIView.animate(withDuration: 0.5, animations: ({
        self.rotate1.transform = CGAffineTransform(rotationAngle: (.pi))


    }), completion: {
            (value: Bool) in
        self.performSegue(withIdentifier: segueName, sender: self)

            })

Answer 1

已解决：顺时针旋转90度，然后重复3次。

 UIView.animate(withDuration: 0.5, animations: ({
        self.rotate1.transform = CGAffineTransform(rotationAngle: (CGFloat.pi / 2))
        self.rotate1.transform = CGAffineTransform(rotationAngle: (CGFloat.pi))
        self.rotate1.transform = CGAffineTransform(rotationAngle: (-CGFloat.pi / 2))
        self.rotate1.transform = CGAffineTransform(rotationAngle: (CGFloat.pi * 2))
        self.rotate1.transform = CGAffineTransform(rotationAngle: (CGFloat.pi / 2))
        self.rotate1.transform = CGAffineTransform(rotationAngle: (CGFloat.pi))
        self.rotate1.transform = CGAffineTransform(rotationAngle: (-CGFloat.pi / 2))
        self.rotate1.transform = CGAffineTransform(rotationAngle: (CGFloat.pi * 2))
        self.rotate1.transform = CGAffineTransform(rotationAngle: (CGFloat.pi / 2))
        self.rotate1.transform = CGAffineTransform(rotationAngle: (CGFloat.pi))
        self.rotate1.transform = CGAffineTransform(rotationAngle: (-CGFloat.pi / 2))
        self.rotate1.transform = CGAffineTransform(rotationAngle: (CGFloat.pi * 2))

尝试执行segue之前使对象快速旋转

1 个答案: